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run code in 150+ php & hhvm versions
Bugs & Features
<?php class ObjectKeyIterator extends IteratorIterator { public function __construct(\Traversable $iterator) { parent::__construct($iterator); } public function key() { $key = parent::key(); return (object)array('key' => $key); } } /*foreach(new ObjectKeyIterator(new ArrayObject(array('test' => 'foo', 2,4, 'bo' => 24,2))) as $key => $value) { var_dump($key, $value); }*/ $iterator = new ObjectKeyIterator(new ArrayObject(array('test' => 'foo', 2,4, 'bo' => 24,2))); $iterator->rewind(); while ($iterator->valid()) { $key = $iterator->key(); $value = $iterator->current(); var_dump($key, $value); $iterator->next(); }
Output for 7.0.0 - 7.1.0
object(stdClass)#5 (1) { ["key"]=> string(4) "test" } string(3) "foo" object(stdClass)#6 (1) { ["key"]=> int(0) } int(2) object(stdClass)#5 (1) { ["key"]=> int(1) } int(4) object(stdClass)#6 (1) { ["key"]=> string(2) "bo" } int(24) object(stdClass)#5 (1) { ["key"]=> int(2) } int(2)
Output for hhvm-3.12.0
object(stdClass)#4 (1) { ["key"]=> string(4) "test" } string(3) "foo" object(stdClass)#5 (1) { ["key"]=> int(0) } int(2) object(stdClass)#6 (1) { ["key"]=> int(1) } int(4) object(stdClass)#7 (1) { ["key"]=> string(2) "bo" } int(24) object(stdClass)#8 (1) { ["key"]=> int(2) } int(2)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.6.28
object(stdClass)#4 (1) { ["key"]=> string(4) "test" } string(3) "foo" object(stdClass)#5 (1) { ["key"]=> int(0) } int(2) object(stdClass)#4 (1) { ["key"]=> int(1) } int(4) object(stdClass)#5 (1) { ["key"]=> string(2) "bo" } int(24) object(stdClass)#4 (1) { ["key"]=> int(2) } int(2)
Output for 5.1.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/7mXic on line 4 object(stdClass)#4 (1) { ["key"]=> string(4) "test" } string(3) "foo" object(stdClass)#5 (1) { ["key"]=> int(0) } int(2) object(stdClass)#4 (1) { ["key"]=> int(1) } int(4) object(stdClass)#5 (1) { ["key"]=> string(2) "bo" } int(24) object(stdClass)#4 (1) { ["key"]=> int(2) } int(2)
Output for 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/7mXic on line 4 Fatal error: Class 'IteratorIterator' not found in /in/7mXic on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/7mXic on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/7mXic on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/7mXic on line 4
Process exited with code 255.